I have a toss up Im looking at the Nismo cat back exhaust and a combo of an ultimate racing y-pipe and the Fujitsubo legis R exhaust.

Which whould be the lighter combo?

Which one would yeild great gains (i dont want to lose alot of low end power)?

Keep in mind im planning on getting either DC headers or the NIsmo headers with resonated test pipes.

Or if you guys have any other input of exhausts under 1000 dollars (y pipe and exhaust included) that would be great. One main factor lighter than stock. Thanks again sorry if this is an annoying thread.